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Compaq Evo n1000v Notebook PC - Removing and Replacing Real-Time Clock (RTC) Battery

Introduction
This document is provided to assist in removing and replacing the real-time clock (RTC) battery for the Compaq Evo n1000v Notebook PC.
Minimum skill level
The End User requires no hardware-specific training to replace the defective part. The End user should have familiarity with system hardware and software requiring repair.
Tools required
Small, Phillips-head (P1 and P0) screwdrivers
Parts required
  note:
Part numbers are subject to change.
The replacement part number will vary depending on the real-time clock (RTC) battery that is being replaced. If a part is listed as "Yes" under "Requires Return" then the defective part needs to be returned to HP.
Description
Part Number
Requires Return
Battery for real time clock (RTC) - 3 V, 36 mA, lithium
279769-001 (Original)
No
  note:
For customers in countries/regions with RoHS legislation* (e.g. EU, China, etc.) restricting the use of hazardous substances in electrical equipment. The use of the Original Spare part is regulated by RoHS legislation. If your unit contains a part that is labelled with the Modified Spare number, the Modified Spare must be ordered as the replacement part. If your unit contains a part that is labelled with the Original Spare number, please order the Original Spare as the replacement part. In this case either the Original Spare or the Modified Spare may be shipped which will not affect performance or functionality of the unit.
Summary of instructions
To view a video demonstrating the procedure for removing the real-time clock (RTC) battery, click on the link below. Or use the product video listing on the HP Services Media Library (Click here to go to HP Service Media Library), then select Real-Time Clock (RTC) Battery from the menu on the upper left hand side of the screen.
Click here to view the real-time clock (RTC) battery removal video (right-click on the link to open in a new window/tab).
Real-time clock (RTC) battery removal
  1. Review the safety considerations before performing the steps listed below by clicking on the following link:
      caution:
    Failure to comply with the precautions could result in damage to your product or loss of data.
  2. Remove the 3 mm Phillips-head screw that secures the modem cover.
  3. Slide the modem cover toward the center of the enclosure.
  4. Use your finger to lift the inside edge of the modem cover and remove it.
  5. Use a small, flat-bladed, non-conductive tool to flip the RTC battery out of its socket.
Real-time clock (RTC) battery replacement
  1. With the positive (+) side facing up, insert and press the RTC battery into the socket.
  2. Place the modem cover into the enclosure.
  3. Slide the modem cover toward the outside of the enclosure.
  4. Replace the 3 mm Phillips-head screw.

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